The size and nature of PTEs varies. Smaller, specialised PTEs may offer a single qualification for fewer than 20 equivalent full-time students (EFTS)
. The largest PTEs, on the other hand, may offer a range of qualifications to over a thousand EFTS. This can make comparing PTEs difficult.

The following tables show how Tertiary Education Strategy (TES) groups – Māori and Pasifika learners, and at-risk young people – performed in 2014, 2015 and 2016 compared to all students at PTEs. These rates have been calculated using our previous educational performance indicator (EPI) methodologies.